mirror of
https://github.com/24eme/signaturepdf.git
synced 2023-08-25 09:33:08 +02:00
893 lines
33 KiB
JavaScript
893 lines
33 KiB
JavaScript
var canvasEditions = [];
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(async function () {
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const cache = await caches.open('pdf');
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var responsePdf = await cache.match(url);
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var pdfBlob = await responsePdf.blob();
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url = await URL.createObjectURL(pdfBlob);
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var dataTransfer = new DataTransfer();
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dataTransfer.items.add(new File([pdfBlob], filename, {
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type: 'application/pdf'
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}));
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document.getElementById('input_pdf').files = dataTransfer.files;
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fabric.Textbox.prototype._wordJoiners = /[]/;
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// Loaded via <script> tag, create shortcut to access PDF.js exports.
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var pdfjsLib = window['pdfjs-dist/build/pdf'];
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// The workerSrc property shall be specified.
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pdfjsLib.GlobalWorkerOptions.workerSrc = '/vendor/pdf.worker.js?legacy';
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// Asynchronous download of PDF
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var loadingTask = pdfjsLib.getDocument(url);
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loadingTask.promise.then(function(pdf) {
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if(pdf.numPages > maxPage) {
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alert("Le PDF de doit pas dépasser "+maxPage+" pages");
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document.location = "/";
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return;
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}
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var is_mobile = function() {
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return !(window.getComputedStyle(document.getElementById('is_mobile')).display === "none");
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}
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var fontCaveat = null;
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var addLock = forceAddLock;
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var forceAddLock = !is_mobile();
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var copiedObject = null;
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var activeCanvas = null;
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var activeCanvasPointer = null;
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var pdfRenderTasks = [];
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var pdfPages = [];
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var svgCollections = [];
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var resizeTimeout;
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var pdfHistory = {};
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var currentScale = 1.5;
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var windowWidth = window.innerWidth;
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var menu = document.getElementById('offcanvasTop')
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var menuOffcanvas = new bootstrap.Offcanvas(menu)
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var currentCursor = null;
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if(localStorage.getItem('pdfHistory')) {
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pdfHistory = JSON.parse(localStorage.getItem('pdfHistory'));
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}
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var responsiveDisplay = function() {
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if(is_mobile()) {
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document.body.style.paddingRight = "";
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menu.classList.remove('show');
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menuOffcanvas.hide();
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document.getElementById('container-pages').classList.remove('vh-100');
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} else {
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menuOffcanvas.show();
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document.body.style.paddingRight = "350px";
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document.getElementById('container-pages').classList.add('vh-100');
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}
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menu.classList.remove('d-md-block');
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menu.classList.remove('d-none');
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}
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responsiveDisplay();
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if(localStorage.getItem('svgCollections')) {
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svgCollections = JSON.parse(localStorage.getItem('svgCollections'));
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}
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var storeCollections = function () {
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localStorage.setItem('svgCollections', JSON.stringify(svgCollections));
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}
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var getSvgItem = function(svg) {
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for (index in svgCollections) {
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svgItem = svgCollections[index];
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if(svgItem.svg == svg) {
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return svgItem;
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}
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}
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return null;
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}
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opentype.load('/vendor/fonts/Caveat-Regular.ttf', function(err, font) {
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fontCaveat = font;
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});
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var svgClick = function(label, event) {
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if(event.detail == 1) {
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label.dataset.lock = parseInt(addLock*1);
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}
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if(event.detail > 1){
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stateAddLock(parseInt(label.dataset.lock*1) != 1);
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}
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if(event.detail > 1) {
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return;
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}
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if(!document.getElementById(label.htmlFor)) {
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return;
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}
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if(!document.getElementById(label.htmlFor).checked) {
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return;
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}
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document.getElementById(label.htmlFor).checked = false;
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document.getElementById(label.htmlFor).dispatchEvent(new Event("change"));
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event.preventDefault();
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}
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var svgDblClick = function(label, event) {
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if(parseInt(label.dataset.lock*1) == 1) {
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return;
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}
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stateAddLock(true);
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}
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var svgDragStart = function(label, event) {
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document.getElementById(label.htmlFor).checked = true;
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document.getElementById(label.htmlFor).dispatchEvent(new Event("change"));
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}
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var svgChange = function(input, event) {
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if(input.checked) {
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document.getElementById('btn_svn_select').classList.add('d-none');
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document.getElementById('svg_object_actions').classList.add('d-none');
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document.getElementById('svg_selected_container').classList.remove('d-none');
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if(input.value.match(/^data:/)) {
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document.getElementById('svg_selected').src = input.value;
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} else {
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document.getElementById('svg_selected').src = input.dataset.svg;
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}
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} else {
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document.getElementById('btn_svn_select').classList.remove('d-none');
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document.getElementById('svg_object_actions').classList.add('d-none');
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document.getElementById('svg_selected_container').classList.add('d-none');
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document.getElementById('svg_selected').src = "";
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}
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stateAddLock(false);
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var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
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if(input_selected && !input_selected.value.match(/^data:/) && input_selected.value != "text") {
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input_selected = null;
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}
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document.querySelectorAll('.btn-svg').forEach(function(item) {
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if(input_selected && item.htmlFor == input_selected.id) {
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item.style.setProperty('cursor', 'copy');
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} else {
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item.style.removeProperty('cursor');
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}
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});
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canvasEditions.forEach(function(canvasEdition, index) {
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if(input_selected) {
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canvasEdition.defaultCursor = 'copy';
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} else {
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canvasEdition.defaultCursor = 'default';
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}
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})
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if(is_mobile()) {
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menuOffcanvas.hide();
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}
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}
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var getHtmlSvg = function(svg, i) {
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var inputRadio = document.createElement('input');
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inputRadio.type = "radio";
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inputRadio.classList.add("btn-check");
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inputRadio.id="radio_svg_"+i;
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inputRadio.name = "svg_2_add";
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inputRadio.autocomplete = "off";
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inputRadio.value = svg.svg;
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inputRadio.addEventListener('change', function() {
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svgChange(this, event);
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});
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var svgButton = document.createElement('label');
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svgButton.id = "label_svg_"+i;
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svgButton.classList.add('position-relative');
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svgButton.classList.add('btn');
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svgButton.classList.add('btn-svg');
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svgButton.classList.add('btn-outline-secondary');
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svgButton.htmlFor = "radio_svg_"+i;
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if(svg.type == 'signature') {
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svgButton.innerHTML += '<i class="bi bi-vector-pen text-black align-middle float-start"></i>';
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}
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if(svg.type == 'initials') {
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svgButton.innerHTML += '<i class="bi bi-type text-black align-middle float-start"></i>';
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}
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if(svg.type == 'rubber_stamber') {
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svgButton.innerHTML += '<i class="bi bi-card-text text-black align-middle float-start"></i>';
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}
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if(svg.type) {
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document.querySelector('.btn-add-svg-type[data-type="'+svg.type+'"]').classList.add('d-none');
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}
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svgButton.innerHTML += '<a title="Supprimer" data-index="'+i+'" class="btn-svg-list-suppression opacity-50 link-dark position-absolute" style="right: 6px; top: 2px;"><i class="bi bi-trash"></i></a>';
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svgButton.draggable = true;
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svgButton.addEventListener('dragstart', function(event) {
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svgDragStart(this, event);
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});
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svgButton.addEventListener('click', function(event) {
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svgClick(this, event);
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});
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svgButton.addEventListener('dblclick', function(event) {
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svgDblClick(this, event);
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});
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svgButton.addEventListener('mouseout', function(event) {
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this.style.removeProperty('cursor');
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})
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var svgImg = document.createElement('img');
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svgImg.src = svg.svg;
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svgImg.draggable = false;
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svgImg.style = "max-width: 180px;max-height: 70px;";
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svgButton.appendChild(svgImg);
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var svgContainer = document.createElement('div');
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svgContainer.classList.add('d-grid');
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svgContainer.classList.add('gap-2');
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svgContainer.appendChild(inputRadio);
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svgContainer.appendChild(svgButton);
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return svgContainer;
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}
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document.getElementById('add-lock-checkbox').addEventListener('change', function() {
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stateAddLock(this.checked);
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});
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var stateAddLock = function(state) {
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if(forceAddLock) {
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state = true;
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}
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var checkbox = document.getElementById('add-lock-checkbox');
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var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
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addLock = state;
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if(!input_selected) {
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addLock = false;
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checkbox.disabled = true;
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} else {
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checkbox.disabled = false;
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}
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/*document.querySelectorAll('.btn-svg').forEach(function(item) {
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item.style.borderWidth = "1px";
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});*/
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if(addLock && input_selected) {
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var svgButton = document.querySelector('.btn-svg[for="'+input_selected.id+'"]');
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//svgButton.style.borderWidth = "2px";
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checkbox.checked = true;
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return;
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}
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checkbox.checked = false;
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}
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var displaysSVG = function() {
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document.getElementById('svg_list').innerHTML = "";
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document.getElementById('svg_list_signature').innerHTML = "";
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document.getElementById('svg_list_initials').innerHTML = "";
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document.getElementById('svg_list_rubber_stamber').innerHTML = "";
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document.querySelectorAll('.btn-add-svg-type').forEach(function(item) {
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item.classList.remove('d-none');
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});
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svgCollections.forEach((svg, i) => {
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var svgHtmlChild = getHtmlSvg(svg, i);
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if(svg.type) {
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document.getElementById('svg_list_'+svg.type).appendChild(svgHtmlChild);
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return;
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}
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document.getElementById('svg_list').appendChild(svgHtmlChild);
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});
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if(svgCollections.length > 0) {
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document.getElementById('btn-add-svg').classList.add('btn-light');
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document.getElementById('btn-add-svg').classList.remove('btn-primary');
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}
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if(document.getElementById('btn-add-svg').classList.contains('btn-primary')) {
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document.getElementById('btn-add-svg').focus();
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}
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document.querySelectorAll('.btn-svg-list-suppression').forEach(function(item) {
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item.addEventListener('click', function() {
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svgCollections.splice(this.dataset.index, 1);
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displaysSVG();
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storeCollections();
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});
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});
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}
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document.querySelectorAll('.btn-add-svg-type').forEach(function(item) {
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item.addEventListener('click', function(event) {
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document.getElementById('input-svg-type').value = this.dataset.type;
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if(this.dataset.modalnav) {
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bootstrap.Tab.getOrCreateInstance(document.querySelector('#modalAddSvg #nav-tab '+this.dataset.modalnav)).show();
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}
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});
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});
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document.querySelectorAll('label.btn-svg').forEach(function(item) {
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item.addEventListener('dragstart', function(event) {
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svgDragStart(this, event);
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});
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item.addEventListener('click', function(event) {
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svgClick(this, event);
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});
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item.addEventListener('dblclick', function(event) {
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svgDblClick(this, event);
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});
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});
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document.querySelectorAll('input[name="svg_2_add"]').forEach(function (item) {
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item.addEventListener('change', function(event) {
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svgChange(this, event);
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});
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});
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displaysSVG();
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stateAddLock();
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document.getElementById('btn_modal_ajouter').addEventListener('click', function() {
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var svgItem = {};
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if(document.getElementById('input-svg-type').value) {
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svgItem.type = document.getElementById('input-svg-type').value;
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}
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if(document.getElementById('nav-draw-tab').classList.contains('active')) {
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svgItem.svg = document.getElementById('img-upload').src;
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}
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if(document.getElementById('nav-type-tab').classList.contains('active')) {
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var fontPath = fontCaveat.getPath(document.getElementById('input-text-signature').value, 0, 0, 42);
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var fabricPath = new fabric.Path(fontPath.toPathData());
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fabricPath.top = 0;
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fabricPath.left = 0;
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fabricPath.height = fabricPath.getScaledHeight();
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var textCanvas = document.createElement('canvas');
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textCanvas.width = fabricPath.getScaledWidth();
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textCanvas.height = fabricPath.getScaledHeight();
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var textCanvas = new fabric.Canvas(textCanvas);
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textCanvas.add(fabricPath).renderAll();
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svgItem.svg = svgToDataUrl(textCanvas.toSVG());
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}
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if(document.getElementById('nav-import-tab').classList.contains('active')) {
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svgItem.svg = document.getElementById('img-upload').src;
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}
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svgCollections.push(svgItem);
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displaysSVG();
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localStorage.setItem('svgCollections', JSON.stringify(svgCollections));
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var svg_list_id = "svg_list";
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if(svgItem.type) {
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svg_list_id = svg_list_id + "_" + svgItem.type;
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}
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document.querySelector('#'+svg_list_id+' label:last-child').click();
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});
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function dataURLtoBlob(dataurl) {
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var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
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bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
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while(n--){
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u8arr[n] = bstr.charCodeAt(n);
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}
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return new Blob([u8arr], {type:mime});
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}
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function svgToDataUrl(svg) {
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return "data:image/svg+xml;base64,"+btoa(svg);
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}
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function trimSvgWhitespace(svgContent) {
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if(!svgContent) {
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return null;
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}
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var svgContainer = document.createElement("div")
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svgContainer.classList.add('invisible');
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svgContainer.classList.add('position-absolute');
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svgContainer.classList.add('top-0');
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svgContainer.classList.add('start-0');
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svgContainer.style = "z-index: -1;";
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svgContainer.innerHTML = svgContent;
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document.body.appendChild(svgContainer);
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var svg = svgContainer.querySelector('svg');
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var box = svg.getBBox();
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svg.setAttribute("viewBox", [box.x, box.y, box.width, box.height].join(" "));
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svgContent = svgContainer.innerHTML;
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document.body.removeChild(svgContainer)
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return svgContent = svgContainer.innerHTML;
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}
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var signaturePad = new SignaturePad(document.getElementById('signature-pad'), {
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penColor: 'rgb(0, 0, 0)',
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minWidth: 1.25,
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maxWidth: 2,
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throttle: 0,
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onEnd: function() {
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const file = new File([dataURLtoBlob(signaturePad.toDataURL())], "draw.png", {
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type: 'image/png'
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});
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var data = new FormData();
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data.append('file', file);
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uploadSVG(data);
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}
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});
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document.getElementById('signature-pad-reset').addEventListener('click', function(event) {
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signaturePad.clear();
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event.preventDefault();
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})
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document.querySelectorAll('#modalAddSvg .nav-link').forEach(function(item) { item.addEventListener('shown.bs.tab', function (event) {
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var firstInput = document.querySelector(event.target.dataset.bsTarget).querySelector('input');
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if(firstInput) {
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firstInput.focus();
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}
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})});
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document.getElementById('modalAddSvg').addEventListener('shown.bs.modal', function (event) {
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document.querySelector('#modalAddSvg #nav-tab button:first-child').focus();
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var tab = document.querySelector('#modalAddSvg .tab-pane.active');
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if(tab.querySelector('input')) {
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tab.querySelector('input').focus();
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}
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var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
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if(input_selected) {
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input_selected.checked = false;
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input_selected.dispatchEvent(new Event("change"));
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}
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})
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document.getElementById('modalAddSvg').addEventListener('hidden.bs.modal', function (event) {
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signaturePad.clear();
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document.getElementById('btn_modal_ajouter').setAttribute('disabled', 'disabled');
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document.getElementById('input-svg-type').value = null;
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document.getElementById('input-text-signature').value = null;
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document.getElementById('input-image-upload').value = null;
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document.getElementById('img-upload').src = "";
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document.getElementById('img-upload').classList.add("d-none");
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bootstrap.Tab.getOrCreateInstance(document.querySelector('#modalAddSvg #nav-tab button:first-child')).show();
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})
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document.getElementById('input-text-signature').addEventListener('keydown', function(event) {
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document.getElementById('btn_modal_ajouter').removeAttribute('disabled');
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if(event.key == 'Enter') {
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document.getElementById('btn_modal_ajouter').click()
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}
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})
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document.getElementById('input-image-upload').addEventListener('change', function(event) {
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var data = new FormData();
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data.append('file', document.getElementById('input-image-upload').files[0]);
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uploadSVG(data);
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event.preventDefault();
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});
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var uploadSVG = function(formData) {
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document.getElementById('btn_modal_ajouter').setAttribute('disabled', 'disabled');
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document.getElementById('btn_modal_ajouter_spinner').classList.remove('d-none');
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document.getElementById('btn_modal_ajouter_check').classList.add('d-none');
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xhr = new XMLHttpRequest();
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xhr.open( 'POST', document.getElementById('form-image-upload').action, true );
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xhr.onreadystatechange = function () {
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var svgImage = svgToDataUrl(trimSvgWhitespace(this.responseText));
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document.getElementById('img-upload').src = svgImage;
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document.getElementById('img-upload').classList.remove("d-none");
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document.getElementById('btn_modal_ajouter').removeAttribute('disabled');
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document.getElementById('btn_modal_ajouter_spinner').classList.add('d-none');
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document.getElementById('btn_modal_ajouter_check').classList.remove('d-none');
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document.getElementById('btn_modal_ajouter').focus();
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};
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xhr.send( formData );
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}
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document.getElementById('save').addEventListener('click', function(event) {
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var dataTransfer = new DataTransfer();
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|
canvasEditions.forEach(function(canvasEdition, index) {
|
|
dataTransfer.items.add(new File([dataURLtoBlob(svgToDataUrl(canvasEdition.toSVG()))], index+'.svg', {
|
|
type: 'image/svg+xml'
|
|
}));
|
|
})
|
|
document.getElementById('input_svg').files = dataTransfer.files;
|
|
});
|
|
|
|
document.getElementById('save_mobile').addEventListener('click', function(event) {
|
|
document.getElementById('save').click();
|
|
});
|
|
|
|
document.getElementById('btn-svg-pdf-delete').addEventListener('click', function(event) {
|
|
deleteActiveObject();
|
|
});
|
|
|
|
document.getElementById('btn_svg_selected_close').addEventListener('click', function(event) {
|
|
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
|
|
|
|
stateAddLock(false);
|
|
input_selected.checked = false;
|
|
input_selected.dispatchEvent(new Event("change"));
|
|
this.blur();
|
|
});
|
|
|
|
document.addEventListener('click', function(event) {
|
|
if(event.target.nodeName == "DIV") {
|
|
|
|
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
|
|
if(!input_selected) {
|
|
return;
|
|
}
|
|
stateAddLock(false);
|
|
input_selected.checked = false;
|
|
input_selected.dispatchEvent(new Event("change"));
|
|
}
|
|
});
|
|
|
|
var deleteActiveObject = function() {
|
|
canvasEditions.forEach(function(canvasEdition, index) {
|
|
canvasEdition.getActiveObjects().forEach(function(activeObject) {
|
|
canvasEdition.remove(activeObject);
|
|
});
|
|
})
|
|
}
|
|
|
|
document.addEventListener('keydown', function(event) {
|
|
if(event.key == 'Escape' && (event.target.tagName == "BODY" || event.target.name == "svg_2_add")) {
|
|
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
|
|
if(!input_selected) {
|
|
return;
|
|
}
|
|
input_selected.checked = false;
|
|
stateAddLock(false);
|
|
input_selected.dispatchEvent(new Event("change"));
|
|
input_selected.blur();
|
|
return;
|
|
}
|
|
if(event.target.tagName != "BODY") {
|
|
return;
|
|
}
|
|
if(event.key == 'Delete') {
|
|
deleteActiveObject();
|
|
return;
|
|
}
|
|
|
|
if(event.ctrlKey && event.key == 'c') {
|
|
if(!activeCanvas || !activeCanvas.getActiveObject()) {
|
|
return;
|
|
}
|
|
copiedObject = fabric.util.object.clone(activeCanvas.getActiveObject());
|
|
|
|
return;
|
|
}
|
|
|
|
if(event.ctrlKey && event.key == 'v') {
|
|
copiedObject = fabric.util.object.clone(copiedObject);
|
|
copiedObject.left = activeCanvasPointer.x;
|
|
copiedObject.top = activeCanvasPointer.y;
|
|
activeCanvas.add(copiedObject).renderAll();
|
|
return;
|
|
}
|
|
|
|
if(event.ctrlKey && (event.key == 'à' || event.key == '0')) {
|
|
autoZoom();
|
|
event.preventDefault() && event.stopPropagation();
|
|
|
|
return;
|
|
}
|
|
if(event.ctrlKey && (event.key == '=' || event.key == '+')) {
|
|
zoomChange(1);
|
|
event.preventDefault() && event.stopPropagation();
|
|
|
|
return;
|
|
}
|
|
if(event.ctrlKey && event.key == '-') {
|
|
zoomChange(-1);
|
|
event.preventDefault() && event.stopPropagation();
|
|
|
|
return;
|
|
}
|
|
});
|
|
|
|
var addObjectInCanvas = function(canvas, item) {
|
|
item.on('selected', function(event) {
|
|
if(!is_mobile()) {
|
|
return;
|
|
}
|
|
document.getElementById('svg_object_actions').classList.remove('d-none');
|
|
document.getElementById('svg_selected_container').classList.add('d-none');
|
|
document.getElementById('btn_svn_select').classList.add('d-none');
|
|
});
|
|
|
|
item.on('deselected', function(event) {
|
|
if(!is_mobile()) {
|
|
return;
|
|
}
|
|
if(document.querySelector('input[name="svg_2_add"]:checked')) {
|
|
document.getElementById('svg_selected_container').classList.remove('d-none');
|
|
} else {
|
|
document.getElementById('btn_svn_select').classList.remove('d-none');
|
|
}
|
|
document.getElementById('svg_object_actions').classList.add('d-none');
|
|
});
|
|
|
|
return canvas.add(item);
|
|
}
|
|
|
|
var createAndAddSvgInCanvas = function(canvas, item, x, y, height = null) {
|
|
save.removeAttribute('disabled');
|
|
save_mobile.removeAttribute('disabled');
|
|
|
|
if(!height) {
|
|
height = 100;
|
|
}
|
|
|
|
if(item == 'text') {
|
|
var textbox = new fabric.Textbox('Texte à modifier', {
|
|
left: x,
|
|
top: y - 20,
|
|
fontSize: 20,
|
|
fontFamily: 'Monospace'
|
|
});
|
|
|
|
addObjectInCanvas(canvas, textbox).setActiveObject(textbox);
|
|
textbox.keysMap[13] = "exitEditing";
|
|
textbox.lockScalingFlip = true;
|
|
textbox.enterEditing();
|
|
textbox.selectAll();
|
|
|
|
|
|
return;
|
|
}
|
|
|
|
fabric.loadSVGFromURL(item, function(objects, options) {
|
|
var svg = fabric.util.groupSVGElements(objects, options);
|
|
svg.svgOrigin = item;
|
|
svg.lockScalingFlip = true;
|
|
svg.scaleToHeight(height);
|
|
if(svg.getScaledWidth() > 200) {
|
|
svg.scaleToWidth(200);
|
|
}
|
|
var svgItem = getSvgItem(item);
|
|
if(svgItem && svgItem.scale) {
|
|
svg.scaleToWidth(canvas.width * svgItem.scale);
|
|
}
|
|
svg.top = y - (svg.getScaledHeight() / 2);
|
|
svg.left = x - (svg.getScaledWidth() / 2);
|
|
|
|
addObjectInCanvas(canvas, svg);
|
|
});
|
|
}
|
|
|
|
window.addEventListener('resize', function(event) {
|
|
event.preventDefault() && event.stopPropagation();
|
|
if(windowWidth == window.innerWidth) {
|
|
return;
|
|
}
|
|
responsiveDisplay();
|
|
windowWidth = window.innerWidth;
|
|
autoZoom();
|
|
});
|
|
document.addEventListener('wheel', function(event) {
|
|
if(!event.ctrlKey) {
|
|
return;
|
|
}
|
|
event.preventDefault() && event.stopPropagation();
|
|
|
|
if(event.deltaY > 0) {
|
|
zoomChange(-1)
|
|
} else {
|
|
zoomChange(1)
|
|
}
|
|
}, { passive: false });
|
|
|
|
document.getElementById('btn-zoom-decrease').addEventListener('click', function() {
|
|
zoomChange(-1)
|
|
});
|
|
document.getElementById('btn-zoom-increase').addEventListener('click', function() {
|
|
zoomChange(1)
|
|
});
|
|
|
|
var autoZoom = function() {
|
|
clearTimeout(resizeTimeout);
|
|
resizeTimeout = setTimeout(resizePDF, 100);
|
|
}
|
|
|
|
var zoomChange = function (inOrOut) {
|
|
if(resizeTimeout) {
|
|
return;
|
|
}
|
|
|
|
var deltaScale = 0.2 * inOrOut;
|
|
|
|
if(currentScale + deltaScale < 0) {
|
|
return
|
|
}
|
|
if(currentScale + deltaScale > 3) {
|
|
return
|
|
}
|
|
|
|
clearTimeout(resizeTimeout);
|
|
currentScale += deltaScale;
|
|
|
|
resizeTimeout = setTimeout(resizePDF(currentScale), 50);
|
|
}
|
|
|
|
var resizePDF = function (scale = 'auto') {
|
|
renderComplete = true;
|
|
pdfRenderTasks.forEach(function(renderTask) {
|
|
if(!renderTask) {
|
|
renderComplete = false;
|
|
}
|
|
});
|
|
|
|
if(!renderComplete) {
|
|
clearTimeout(resizeTimeout);
|
|
resizeTimeout = setTimeout(function(){ resizePDF(scale) }, 50);
|
|
return;
|
|
}
|
|
|
|
pdfPages.forEach(function(page, pageIndex) {
|
|
var renderTask = pdfRenderTasks[pageIndex];
|
|
|
|
if(scale == 'auto' && page.getViewport({scale: 1.5}).width > document.getElementById('container-pages').clientWidth - 40) {
|
|
scale = (document.getElementById('container-pages').clientWidth - 40) / page.getViewport({scale: 1}).width;
|
|
}
|
|
|
|
if(scale == 'auto') {
|
|
scale = 1.5;
|
|
}
|
|
|
|
var viewport = page.getViewport({scale: scale});
|
|
currentScale = scale;
|
|
|
|
var canvasPDF = document.getElementById('canvas-pdf-' + pageIndex);
|
|
var context = canvasPDF.getContext('2d');
|
|
canvasPDF.height = viewport.height;
|
|
canvasPDF.width = viewport.width;
|
|
canvasEdition = canvasEditions[pageIndex];
|
|
|
|
var scaleMultiplier = canvasPDF.width / canvasEdition.width;
|
|
var objects = canvasEdition.getObjects();
|
|
for (var i in objects) {
|
|
objects[i].scaleX = objects[i].scaleX * scaleMultiplier;
|
|
objects[i].scaleY = objects[i].scaleY * scaleMultiplier;
|
|
objects[i].left = objects[i].left * scaleMultiplier;
|
|
objects[i].top = objects[i].top * scaleMultiplier;
|
|
objects[i].setCoords();
|
|
}
|
|
|
|
canvasEdition.setWidth(canvasEdition.getWidth() * scaleMultiplier);
|
|
canvasEdition.setHeight(canvasEdition.getHeight() * scaleMultiplier);
|
|
canvasEdition.renderAll();
|
|
canvasEdition.calcOffset();
|
|
|
|
var renderContext = {
|
|
canvasContext: context,
|
|
viewport: viewport,
|
|
enhanceTextSelection: true
|
|
};
|
|
renderTask.cancel();
|
|
pdfRenderTasks[pageIndex] = null;
|
|
renderTask = page.render(renderContext);
|
|
renderTask.promise.then(function () {
|
|
pdfRenderTasks[pageIndex] = renderTask;
|
|
clearTimeout(resizeTimeout);
|
|
resizeTimeout = null;
|
|
});
|
|
});
|
|
}
|
|
|
|
for(var pageNumber = 1; pageNumber <= pdf.numPages; pageNumber++ ) {
|
|
pdf.getPage(pageNumber).then(function(page) {
|
|
var scale = 1.5;
|
|
var viewport = page.getViewport({scale: scale});
|
|
if(viewport.width > document.getElementById('container-pages').clientWidth - 40) {
|
|
viewport = page.getViewport({scale: 1});
|
|
scale = (document.getElementById('container-pages').clientWidth - 40) / viewport.width;
|
|
viewport = page.getViewport({ scale: scale });
|
|
}
|
|
|
|
currentScale = scale;
|
|
|
|
var pageIndex = page.pageNumber - 1;
|
|
|
|
document.getElementById('form_pdf').insertAdjacentHTML('beforeend', '<input name="svg[' + pageIndex + ']" id="data-svg-' + pageIndex + '" type="hidden" value="" />');
|
|
document.getElementById('container-pages').insertAdjacentHTML('beforeend', '<div class="position-relative mt-1 ms-1 me-1 d-inline-block" id="canvas-container-' + pageIndex +'"><canvas id="canvas-pdf-'+pageIndex+'" class="shadow-sm canvas-pdf"></canvas><div class="position-absolute top-0 start-0"><canvas id="canvas-edition-'+pageIndex+'"></canvas></div></div>');
|
|
|
|
var canvasPDF = document.getElementById('canvas-pdf-' + pageIndex);
|
|
var canvasEditionHTML = document.getElementById('canvas-edition-' + pageIndex);
|
|
// Prepare canvas using PDF page dimensions
|
|
var context = canvasPDF.getContext('2d');
|
|
canvasPDF.height = viewport.height;
|
|
canvasPDF.width = viewport.width;
|
|
canvasEditionHTML.height = canvasPDF.height;
|
|
canvasEditionHTML.width = canvasPDF.width;
|
|
|
|
var renderContext = {
|
|
canvasContext: context,
|
|
viewport: viewport,
|
|
enhanceTextSelection: true
|
|
};
|
|
var renderTask = page.render(renderContext);
|
|
pdfRenderTasks.push(renderTask);
|
|
pdfPages.push(page);
|
|
var canvasEdition = new fabric.Canvas('canvas-edition-' + pageIndex, {
|
|
selection : false,
|
|
allowTouchScrolling: true
|
|
});
|
|
|
|
document.getElementById('canvas-container-' + pageIndex).addEventListener('drop', function(event) {
|
|
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
|
|
if(!input_selected) {
|
|
return;
|
|
}
|
|
|
|
createAndAddSvgInCanvas(canvasEdition, input_selected.value, event.layerX, event.layerY, input_selected.dataset.height);
|
|
input_selected.checked = false;
|
|
input_selected.dispatchEvent(new Event("change"));
|
|
});
|
|
canvasEdition.on('mouse:move', function(event) {
|
|
activeCanvas = this;
|
|
activeCanvasPointer = event.pointer;
|
|
});
|
|
canvasEdition.on('mouse:down:before', function(event) {
|
|
currentCursor = this.defaultCursor;
|
|
});
|
|
canvasEdition.on('mouse:down', function(event) {
|
|
if(event.target) {
|
|
this.defaultCursor = 'default';
|
|
return;
|
|
}
|
|
var input_selected = document.querySelector('input[name="svg_2_add"]:checked');
|
|
if(currentCursor == 'default' && input_selected) {
|
|
this.defaultCursor = 'copy';
|
|
}
|
|
if(currentCursor != 'copy') {
|
|
return;
|
|
}
|
|
if(!input_selected) {
|
|
return;
|
|
}
|
|
|
|
createAndAddSvgInCanvas(this, input_selected.value, event.pointer.x, event.pointer.y, input_selected.dataset.height);
|
|
|
|
if(addLock) {
|
|
return;
|
|
}
|
|
input_selected.checked = false;
|
|
input_selected.dispatchEvent(new Event("change"));
|
|
});
|
|
canvasEdition.on('object:scaling', function(event) {
|
|
if(event.transform.action == "scaleX") {
|
|
event.target.scaleY = event.target.scaleX;
|
|
}
|
|
if(event.transform.action == "scaleY") {
|
|
event.target.scaleX = event.target.scaleY;
|
|
}
|
|
});
|
|
canvasEdition.on('object:scaled', function(event) {
|
|
var item = getSvgItem(event.target.svgOrigin);
|
|
if(!item) {
|
|
return;
|
|
}
|
|
item.scale = event.target.width * event.target.scaleX / event.target.canvas.width;
|
|
storeCollections();
|
|
});
|
|
canvasEdition.on("text:changed", function(event) {
|
|
if (!event.target instanceof fabric.IText) {
|
|
return;
|
|
}
|
|
const textLinesMaxWidth = event.target.textLines.reduce((max, _, i) => Math.max(max, event.target.getLineWidth(i)), 0);
|
|
event.target.set({width: textLinesMaxWidth});
|
|
});
|
|
canvasEditions.push(canvasEdition);
|
|
});
|
|
}
|
|
}, function (reason) {
|
|
console.error(reason);
|
|
});
|
|
})(); |